Die-cast slider pull with formed pivot bearings



1 Dec. 26, 1950 L, H. MORIN 2,535,505

DIE CAST SLIDER PULL WITH FORMED PIVOT BEARINGS Filed July 12, 1947 INVENTOR LOUIS H. MORIN ATTORN Y tending lugs Patented Dec. 26 1950 UNITED STATES PATENT OFFICE DIE-CAST SLIDER PULL WITH FORMED PIVOT BEARINGS This invention relates to the pull of sliders of separable fasteners employed to couple and uncouple the stringers of the fasteners. More particularly, the invention deals with a one-piece die cast pull device wherein the pivot bearing portions are so formed in casting the pull as to dispense with the necessity of drilling or otherwise forming the pull for reception of the pivot pin employed to pivotally couple the pull with the slider. Still more particularly, the invention deals with pulls of the class described includin integral lock pins or elements adapted to extend into the channel of the s ider in retaining the slider against movement along the stringers.

The novel features of the invention will be best understood from the following description, when taken together with the accompanying drawing, in which certain embodiments of the invention are disclosed and, in which, the separate parts are designated by suitable reference characters in each of the views and, in which:

Fig. 1 is a perspective View of one form of pull which I employ.

Fig. 2 is a cross-sectional view through a separable fastener slider and through the pivot portion of a pull, similar to that shown in Fig. 1.

Fig. 3 is a partial section on the line 3-3 of Fig. 2.

Fig. 4 is a partial section on the line 4-4 of Fig. 3.

Fig. 5 is a view similar to Fig. 1 showing a modified form of pull; and

4 Claims. (Cl. 24-20514) Fig. 6 is a view similar to Fig. 2 showing the pivot end of the pull of Fig. 5 and showing only part of the slider structure.

In Fig. 2 of the drawing, I have shown at coupling and uncoupling the stringers of separable fasteners. The stringers are not shown, for sake of clarity and in view of the fact that slider structures of the kind under consideration are well known in the art. At II I have shown the top wall of the slider, at l2 the bottom wall, these walls being joined at one end of the slider in a connecting frog or web I3, forming a channel [4 between the spaced walls. The top and bottom Walls also have inturned side flanges i5 and I6, respectively, which define the channel it. The top wall has a pair of upwardly ex- H, H, adjacent side edge portions thereof, the lugs having apertures, as at i8, i8, for the reception of a pivot pin !9. The wall H has an elongated aperture 20, adjacent the lug H. In spaced relation to the lugs l7, ll, the wall I i has asmall aperture 2| positioned substantially as seen in Fig. 2 of the drawing. The upper surface of the wall ll, between the lugs I1, IT, has a concaved recess, as at 22, to compensate for free swinging or pivotal movement of the pivot end portion 23 of a pull 24 The pivot end portion 23 has side bearings 25 and 26 which are substantially U-shaped in form, having openings 21 and 28, respectively, which open through the upper surface of the pivot end portion 23. Between the bearings 25 and 2fi,the upper surface of the pivot portion 23 has a curved hood portion 29 which conceals that part of the pivot pin I9 disposed between the bearings 25 and 26 or at least the major portion of this spacing of the bearings.

It will be noted that the bearing 25 includes, as an integral part thereof, a downwardly extending pin or look element 39 which is adapted to extend through the aperture 20 to normally enter the channel i 4 to engage the fastener stringers in retaining the slider against movement thereon. The pin or element 38 joins the body portion 3| of the pull in an offset reinforcing part 32, note Fig. 3 of the drawing. This part does not extend into the channel. However, the aperture 20 is made sufficiently long to receive the part 32, as will clearly appear from a consideration of Fig. 3 of the drawing.

The under-surface of the body 3! adjacent the pivot end 23 and opening into said pivot end, has an e ongated recess 33, the depth of which is increased to a slight extent by a raised boundary wall portion 34. The recess 33 is adapted to receive one end 35 of a coil spring 35 arranged upon the pivot pin !9 within the hood 29. The

other end 3'! of the spring extends into the aperture 2|, as clearly seen in Fig. 2 of the drawing.

In Fig. 4 of the drawing is shown a cross-section through said partof the body 3! having the raised wall portions 34 around the recess 33.

engagement with the body 3|. It will be apparent that the spring 36 is tensioned to normally support the pull in the closed position, shown in Figs. 2 and 3 with the element 3!] in the channel I4 in raising the pull or swinging the same on the pivot pin [9, the tension of the spring is increased so that, when the pull is released, the spring will automatically return the element 30 to its lock d position.

The free end of the pull has an enlarged apertured head, as seen at 39, which forms a suitable finger grip portion, retaining the pull against accidental displacement from the fingers of the hand.

In Figs. 5 and 6 of the drawing, I have shown a slight mod fication and, in Fig. 6, the top wall 40 only of the slider is shown this wall having spaced apertured lugs 4|, 4! for the reception of a pivot pin 42, this structure being the same as in Fig. 2. Between the lugs 4|, 4| the slider wall is recessed, as at 43, the same as the recess 22 and the wall of the slider has one elongated aperture 44 receiving the lock element 45 of a pull 46, as well as the end 41 of a spring 48. The. primary difference between the pull of Figs. andfi and that of the other figures resides in the fact that a center elongated bearing 49 is provided instead of the two end bearings 25, 2.3. The element is integral with the bearing 49 and, instead-of a single hood portion, as at 29, the upper outer surmanner disclosed, it will. be apparentthat the .bearing and hood. portions may be formed in. die .casting the pulls thus'dispensing. with the need of drilling. or therwise forming said pivot por- ..tionsinattaching the pulls to the pivot pins. .In other words, the pins l9, 42 ,are. simply passed through the pivot portions of. the. respective bearings, namely 25,, 2t and the bearing 49, and .thenriveted oyer or. otherwise secured, as indicatedat in Fig, 2 and'iliin Fig. .6. .It:wi11, of .course, be understood that the springs-.36, and ,48 are attached to the. pins before they are headed, over and in assembla e of. the pins. with ..1the pull.

By virtue of'thisconstruction,..the 905l1 ofproducingapull is materially simplifiedinjthat the jhandling and time required to, form pivot, pin holes in the bearing or pivot. ends of pulls is dispensed with. 'At the same time, my improved construction provides secure and firm mounting .of the pulls on the pivot pins.

Itwillbe recognized that in itsbroader aspects the invention is indifferent to whether or not, a spring is utilized and that the described adapta- ;.tion ofjthe invention to a slider pullis illustrative only. IIIL general, the pull canbe .thoughtofas a hinge plate having one or more hinge lugs (49.,in ig. 6'and25, 26; in. Fig." 1) protruding from one face of the plate adjacentone of its edges. L What adapts the construction t economicalmanufac- "ture by casting and eliminates the need fordrill- 'ing or piercing is the fact thatthe hinge pin hole is .constituted .by a slot penetrating. theface of the plateand the lug or lugs toanappropriate depth (as is convenient inoastingythe length of ,the slot, being greater thanthewidth oriljliokn s of the. lug. so hat the urplusv slo len in.- suresga clean cut-hole or opening to receive. .llhe hin e Pin. Preferably and asillustrated thelllgbearing portion 29 of the hinge plate isoi arouate form and the lug or lugs. protrude from the concave side.

Having. fullydescribed my invention, what, I claim as new .and desire to secure byjLetters Patent is:

1. The combination with a. slider having spaced lngsiupstanding from its upper surface ofa slider pull comprising a plate-like body portion having a? thickened. end, portion extending. transversely of one end of said body portion, said end portion being ofa ,widthto. enterbetween the said, spaced lugshand a hinge-l rojectin r m. t e und r sideof said end-portion, saidlugbeingof a-Width lessthanthe width of the body-portionand.hay.-v

ingahinge pinppening .therethrough .-to accomrmodate. a .hingeipin parallel to-theplane, ofzthe body portion, said opening constituted by a slot penetrating the face of the body portion and the hinge lug to a depth to accommodate the hinge pin,fthe length of the slot, widthwise of the body portion, being greater than the width of the lug, said surface of the slider having an aperture mtherethrough and said hinge lug having a locking projection penetrating said aperture, a hinge pin extending through both said spaced lugs and said hinge lug, and a coil spring on said pin between: said spaced lugs, one end of said coil spring being interlocked with said upper surface of the slider.

2. The combination with a slider having spaced lugs upstanding from its upper surface of a slider pull comprising a plate-like body portion having an enlarged end portion extending transversely ..of, one end of said body portion,.said end portion being of a-width toenter between the said spaced lugs,.and a hinge lug projecting from the under side of said end portion, said lug being of awidth less than the width of the body portion and having a hinge pin opening therethrough to accommodate a hinge pin parallel to the plane of the body portion, saidopening constituted by a slot penetrating the faceof the bodyportion and the hinge lug to a depth to accommodate the hinge pin, the length of the-slot, widthwise of the body portion, being greater than the vvdthof the lug. 3. Thev combination with a slider having spaced lu s upstanding from its upper surface of a slider pull comprising a plate-like body portion having .an enlarged end portion extending transversely of one end-of said body portion, said end portion being of a-width to enter between the said spaced lugs, and a hingezlug projecting from one side of saidend portion, said lug being of a width less than the width of the body portion and having a hinge pin opening therethrough to accommodate a hinge pin parallel to the. plane of the body portion, saidopening constituted by a slot penetrating the face of the body portion and the hinge lug to a depth to accommodate thehinge pin,.the length of the slot, widthwise of the body 3 portion, being greater than the width of the lug.

A. A pull for sliders of separable fastener stringers, said pull comprising an elongated body having a pivotend'and a fingerpiece end, the

- pivot end of the pull havingon opposed surfaces LOUIS MORIN.

REFERENCES CITED The following references are of record in the file of this, patent:

UNITED STATES PATENTS Number Name Date 2,012,800 Allen Aug. 27, 1935 2,228,146 Morin 'Jan.' 7, 1941 FOREIGN PATENTS Number Country Date Z0;6.6.0 ,G rmany of 1933 

